is voip the right match for you? dave tainer director, information systems, gmhc august 13, 2008
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Is VoIP the Right Match for You?Is VoIP the Right Match for You?
Dave TainerDave TainerDirector, Information Systems, GMHCDirector, Information Systems, GMHCAugust 13, 2008August 13, 2008
© 2008 Dave Tainer | GMHC All Rights Reserved.
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What will we talk about today?What will we talk about today?
• Voice over IP is a technology whose time has come. We have been, for at least the last few years, at the convergence point where the promises of the technology have met the reality. If done correctly, the system will be secure, easy to manage, reliable, and very cost-effective. It is not an easy task to project manage and bring to completion, but it is well worth it to try for the social profit sector
Why VoIP?Why VoIP?
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Why VoIPWhy VoIP??
• Does it make sense for your organization?• Cost! (capital vs. budget) • Unified Communications
– This is also called “convergence”: where you will be able to be reached by anybody with the ability to know “how” you can be reached
• Concept of “presence”– Cisco calls it “TelePresence”– Microsoft just calls it “presence”
• Chat, TXT, mobile phone, desktop VoIP phone, WiFi VoIP phone, videophone, etc.
– Ties in to other technologies such as SharePoint
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Why VoIPWhy VoIP? Cost!? Cost!
• Cost! – Capital vs. Budget
• A one-time purchase that you make that allows amortization over several years (telecom is usually a 7- or 10-year schedule)
– Overall cost • Cost of repairing old system (budget, usually)• Cost of being down• Monthly cost of the provider and calls made/received
– Current Network Infrastructure upgrade…• This is more cost, but should also be in the capital budget
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Why VoIPWhy VoIP? Cost!? Cost!
Telecom Cost: Real World Example
$15,000
$9,000
$0
$0
$85,000
$89,000
$48,000
$49,000
$1,800
$900
$0
$0
Year 1
Year 2
VoIP 1
VoIP 2
Maintenance Monthly Bill Equipment
Getting Ready for VoIPGetting Ready for VoIP
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIPGetting Ready for VoIP
• Infrastructure!!! • Current T1/DSL, etc. connections • QoS—what does it mean?
– “Quality of Service” is the end result, but the term is actually a reference to being able to provide different priority to different types of network traffic. In this case, it is VoIP traffic
– The floor, or first layer, of the network is reserved for the highest priority in VoIP
– This could also be used for video-conferencing and other types of streaming, if that is important to the organization
– QoS simply gives voice the priority so that there is no breakup to the packets of voice data, which would result in high latency, clipped and distorted speech, and continuity to what is spoken/heard
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIP: QoSGetting Ready for VoIP: QoS
VoIP SMTP HTTP FTP
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIPGetting Ready for VoIP
• Planning for implementation – Like much in IS, there is no one-size-fits-all solution, however…– How many data ports at each workstation?
• Phones with switches? • Separate ethernet to workstation and VoIP phone (Speed/flexibility)
– Fax lines– Analog lines for credit cards, social security processing or other– WiFi VoIP Phones?– Lining up the providers – Active Directory up-to-date and properly set up
• And LDAP directory if not using Cisco or WinX (even if, for that matter…)– SIP trunking or PRI Gateway
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIPGetting Ready for VoIP
• SIP Trunking – Session Initiated Protocol– Basically an indirect connection to a telecom trunk via the cloud– Why you would use it?
• Cheapest phone rate• Great WAN capabilities• Only 1 (or two) T1 needed for data and telecom• Maximum VoIP phone compatibility
– Why you wouldn’t use it?• Security
– DoS attack-prone• Echo and Latency• Old/Outdated network infrastructure• Security
– Malware threat
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIPGetting Ready for VoIP
• PRI– Primary Rate Interface– 24 lines at T1 speed, built in QoS– Why would you use this?
• Separation of data path with telecom path• Security
– No DoS on PRIs– Not associated to your domain name
• VoIP on PRI is still cheaper than PBX on PRI• Organizational Size (multiple options, though, discuss…)
– Why you wouldn’t use this:• Expense of maintaining separate functional T1 (also an advantage)• Added network/network infrastructure complexity
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIP: Security IssuesGetting Ready for VoIP: Security Issues
• Security details:– Most secure system is costly and not as easy to unify (separate network)
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7941 SERIESCISCO IP PHONE
1 2ABC
3DEF
4 5JKL
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7 8TUV
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* 0OPER
#
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7961 SERIESCISCO IP PHONE
1 2ABC
3DEF
4 5JKL
6MNOGHI
7 8TUV
9WXYZPQRS
* 0OPER
#
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+-
7961 SERIESCISCO IP PHONE
1 2ABC
3DEF
4 5JKL
6MNOGHI
7 8TUV
9WXYZPQRS
*0
OPER#
?
+-
CISCO IP PHONE7970 SERIES
1
2
3
4
Catalyst4510R
5
6
7
FANSTATUS
8
9
10FLEX-SLOT
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
1 0 / 1 0 0 / 1 0 0 0
1
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
2
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
3
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
6
1 0 0 0 - X1 0 / 1 0 0 / 1 0 0 0
4
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
5
1 0 0 0 - X
POE
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
1 0 / 1 0 0 / 1 0 0 0
1
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
2
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
3
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
6
1 0 0 0 - X1 0 / 1 0 0 / 1 0 0 0
4
1 0 0 0 - X 1 0 / 1 0 0 / 1 0 0 0
5
1 0 0 0 - X
POE
RESET
UPLINK 1 UPLINK 2
ACTIVELINK LINK ACTIVE ACTIVE
WS-X4516 SUPERVISOR ENGINE V
STATUSEJECT
FLASH
CONSOLE
LINK
MGT10/100
UTILIZATION
100%1%
MAX 15.4W/PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNETSWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
MAX 15.4W/PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNETSWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWRSYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWRSYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___ 18A
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CORE EDGE
Alternate VoIP Install: Separate Network (Reduntant T-1, SIP or PRI)
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWRSYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWRSYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___ 18A
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIP: Security IssuesGetting Ready for VoIP: Security Issues
• Security details:– Most cost effective system is easier integrate for unified communication between Active
Directory/LDAP and VoIP in Multi-VLAN environment
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7941 SERIESCISCO IP PHONE
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7941 SERIESCISCO IP PHONE
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7961 SERIES
CISCO IP PHONE
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7961 SERIES
CISCO IP PHONE
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*0
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+-
CISCO IP PHONE7970 SERIES
Catalyst 3560 SERIES
SYST
MODE
SPEEDDUPLX
POE
STAT
RPS
1X
18X
17X
16X2X
15X 31X
32X 34X
33X 47X
48X
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 481 2 3 4 5 6 7 8 9 10
1
PoE-48
3
2 4
1
2
3
4
Catalyst4510R
5
6
7
FANSTATUS
8
9
10FLEX-SLOT
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
1 0 /1 00/1 00 0
1
1 00 0-X 1 0/1 00 /1 00 0
2
1 00 0-X 1 0/1 00/1 00 0
3
1 00 0-X 1 0/1 00 /1 00 0
6
1 00 0-X1 0/1 00 /1 00 0
4
1 00 0-X 1 0/1 00 /1 00 0
5
1 00 0-X
POE
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
1 0 /1 00/1 00 0
1
1 00 0-X 1 0/1 00 /1 00 0
2
1 00 0-X 1 0/1 00/1 00 0
3
1 00 0-X 1 0/1 00 /1 00 0
6
1 00 0-X1 0/1 00 /1 00 0
4
1 00 0-X 1 0/1 00 /1 00 0
5
1 00 0-X
POE
RESET
UPLINK 1 UPLINK 2
ACTIVELINK LINK ACTIVE ACTIVE
WS-X4516 SUPERVISOR ENGINE V
STATUSEJECT
FLASH
CONSOLE
LINK
MGT10/100
UTILIZATION
100%1%
MAX 15.4W /PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNET
SWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
MAX 15.4W /PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNET
SWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
DO NOT REMOVE DURING NETW ORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
DO NOT REMOVE DURING NETW ORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CORE EDGE
Typical VoIP Install: QoS over Multi-VLAN Network (Reduntant T-1, SIP)
© 2008 Dave Tainer | GMHC All Rights Reserved.
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Getting Ready for VoIP: Security IssuesGetting Ready for VoIP: Security Issues
• Security details:– Best Practice system mixes security of PRI, in a separate domain, but allows unified
communication via AD/LDAP in Multi-VLAN environment
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* 0OPER
#
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+-
7941 SERIESCISCO IP PHONE
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7 8TUV
9WXYZPQRS
* 0OPER
#
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+-
7941 SERIESCISCO IP PHONE
1 2ABC
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* 0OPER
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7961 SERIESCISCO IP PHONE
1 2ABC
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6MNOGHI
7 8TUV
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* 0OPER
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+-
7961 SERIESCISCO IP PHONE
1 2ABC
3DEF
4 5JKL
6MNOGHI
7 8TUV
9WXYZPQRS
*0
OPER#
?
+-
CISCO IP PHONE7970 SERIES
Catalyst 3560 SERIES
SYST
MODE
SPEEDDUPLX
POE
STAT
RPS
1X
18X
17X
16X2X
15X 31X
32X 34X
33X 47X
48X
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 481 2 3 4 5 6 7 8 9 10
1
PoE-48
3
2 4
1
2
3
4
Catalyst4510R
5
6
7
FANSTATUS
8
9
10FLEX-SLOT
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
10/100/1000
1
1000-X 10/100/1000
2
1000-X 10/100/1000
3
1000-X 10/100/1000
6
1000-X10/100/1000
4
1000-X 10/100/1000
5
1000-X
POE
WS-X4506-GB-T
STATUS
POWER OVER ETHERNET
MAX 15.4W/PORT1000 BASE-XSWITCHING MODULE
10/100/1000
1
1000-X 10/100/1000
2
1000-X 10/100/1000
3
1000-X 10/100/1000
6
1000-X10/100/1000
4
1000-X 10/100/1000
5
1000-X
POE
RESET
UPLINK 1 UPLINK 2
ACTIVELINK LINK ACTIVE ACTIVE
WS-X4516 SUPERVISOR ENGINE V
STATUSEJECT
FLASH
CONSOLE
LINK
MGT10/100
UTILIZATION
100%1%
MAX 15.4W /PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNET
SWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
MAX 15.4W /PORT
STATUS
WS-X4548-GB-RJ45V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
MULTI-SPEEDGIGABIT ETHERNET
SWITCHING MODULE
48-PORT10/100/1000 BASE T
IN-LINE POWER
3231
3029
2827
2625
2423
2221
2019
1817
4847
4645
4443
4241
4039
3837
3635
3433
1615
1413
1211
109
87
65
43
21
32313029282726252423222120191817 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CISCO ASA 5510
POWER STATUS ACTIVE VPN FLASH
Adaptive Security Appliance
SERIES
CORE EDGE
Best Practice VoIP Install: QoS over Multi-VLAN Network (Reduntant T-1, PRI)
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
DO NOT REMOVE DURING NETWORK OPERATION
Cisco 2800 Series
PWR
SYS
PWR AIM0 CF COMPACT FLASHAUX/
CONSOLE
AUX
SYS 1
0
100-240V ~ 3A50/60Hz
OPTIONAL RPS INPUT
12V - - - ___
18A
Internet
Telecom (PRI)
The VendorsThe Vendors
© 2008 Dave Tainer | GMHC All Rights Reserved.
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VoIP VendorsVoIP Vendors
• Follow the phone… – Pluses and minuses of the different brands
• Cisco, Nortel, 3Com, Foundry, Enterasys-Siemens, others (PolyCom OEM) – Pick one, and use all of their equipment together
• If you only listen to one thing I’ve said today, make it this one! • Use Platinum Vendors
– In-house vs. VoIP consultant • Depends on staffing and expertise, and to some extent, money
Endgame for VoIP SystemsEndgame for VoIP Systems
© 2008 Dave Tainer | GMHC All Rights Reserved.
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EndgameEndgame
• Plugging everything in and getting ready to go live – Parallel systems for at least two weeks
• Start with one department, then keep adding as you see the system working
– It will cost more, and be a pain to the staff because they will have to maintain two voice mails, but you’ll be glad you did it
• Switchover to the new system – Hopefully after a succesful parallel run, you won’t just be crossing
your fingers!• Successful Implementation
– ROI is the best selling point to senior management for this– Keep track of costs going forward and compare to the previous year/s